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J. H. KLEINFELDER & ASSOCIATES <br /> File: 24-2038-1/28:725 <br /> December 10, 1986 <br /> Page 1 <br /> SOIL AND GROUND WATER INVESTIGATION <br /> CITY OF LODI <br /> ` LODI, CALIFORNIA <br /> �- 1.0 INTRODUCTION <br /> The following report presents the soil and ground water investigation <br /> performed at the City of Lodi Public Works facility in Lodi, California. <br /> J.H. Kleinfelder & Associates (JHK&A) was contracted to conduct a soil and <br /> ground water investigation adjacent to an underground storage tank. This <br /> report describes the work elements associated with the collection of soil <br /> samples, installation of monitoring wells, and presents the analytical <br /> results obtained to date. <br /> 2.0 AUTHORIZATION <br /> City of Lodi authorized J.H. Kleinfelder & Associates to perform a <br /> soil and ground water investigation by issuing two purchase orders signed <br /> by Mr. Richard Wiech. All policy determination and scheduling has been <br /> coordinated with Mr. Wiech. <br /> 3.0 BACKGROUND <br /> The City of Lodi facility is located at 221 West Pine Street in the <br /> City of Lodi, as shown on Plate No. 1. An underground storage tank is <br /> located in the parking lot of the facility. The tank, which has an <br /> approximate capacity of 18,400 gallons, is approximately 39 feet long with <br /> a diameter of 9 feet. The bottom of the tank is approximately 22.5 feet <br /> below the ground surface. At this time the tank is operational and being <br /> used to store unleaded gasoline for city vehicles. <br /> �- 4.0 OBJECTIVE <br /> The purpose of the soil and ground water investigation was to assess <br /> whether leakage has occurred from the underground storage tank. The <br /> proposed scope of work was developed in concert with City of Lodi and the <br /> San Joaquin Local Health District, and was presented in JHK&A's "Sampling <br /> and Analysis for Underground Tank Closure" proposal dated June 13, 1986. <br />